How tall can a Lego tower get?

So - how many Lego bricks, stacked one on top of the other, would it take to destroy the bottom brick?

Ian Johnston and the team do two more tests to be sure we hadn't just happened upon the strongest Lego brick in existence. And in fact they were impressed at the consistency of Lego manufacture.

The average maximum force the bricks can stand is 4,240N. That's equivalent to a mass of 432kg (950lbs). If you divide that by the mass of a single brick, which is 1.152g, then you get the grand total of bricks a single piece of Lego could support: 375,000.

So, 375,000 bricks towering 3.5km (2.17 miles) high is what it would take to break a Lego brick.